Allowance for loan losses (Tables)

3 Months Ended

Mar. 31, 2012

Allowance for loan losses [Abstract]

Allowance for Credit Losses on Financing Receivables



	Quarter Ended March 31, 2012
	C&I			CRE			Construction			Leases			Installment			Home Equity Lines			Credit Cards			Residential Mortgages			Total
Allowance for loan losses, beginning balance	$	32,363		$	31,857		$	5,173		$	341		$	17,981		$	6,766		$	7,369		$	5,849		$	107,699
Charge-offs	(6,703		)	(669		)	(38		)	—			(5,238		)	(2,324		)	(1,583		)	(862		)	(17,417		)
Recoveries	545			81			263			37			3,180			645			630			57			5,438
Provision for noncovered loan losses	10,967			(3,491		)	(274		)	(44		)	(1,170		)	1,182			104			855			8,129
Allowance for loan losses, ending balance	$	37,172		$	27,778		$	5,124		$	334		$	14,753		$	6,269		$	6,520		$	5,899		$	103,849



	Quarter Ended March 31, 2011
	C&I			CRE			Construction			Leases			Installment			Home Equity Lines			Credit Cards			Residential Mortgages			Total
Allowance for loan losses, beginning balance	$	29,764		$	32,026		$	7,180		$	475		$	21,555		$	7,217		$	11,107		$	5,366		$	114,690
Charge-offs	(4,715		)	(1,851		)	(1,358		)	—			(8,091		)	(2,815		)	(2,318		)	(1,664		)	(22,812		)
Recoveries	526			1			81			32			3,719			699			647			89			5,794
Provision for noncovered loan losses	6,074			2,952			1,736			(27		)	3,526			1,782			(724		)	1,699			17,018
Allowance for loan losses, ending balance	$	31,649		$	33,128		$	7,639		$	480		$	20,709		$	6,883		$	8,712		$	5,490		$	114,690

Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent



	As of March 31, 2012
	C&I		CRE		Construction		Leases		Installment		Home Equity Lines		Credit Cards		Residential Mortgages		Total
Ending allowance for noncovered loan losses balance attributable to loans:
Individually evaluated for impairment	$	972	$	2,478	$	224	$	—	$	1,902	$	66	$	92	$	1,505	$	7,239
Collectively evaluated for impairment	36,200		25,300		4,900		334		12,851		6,203		6,428		4,394		96,610
Total ending allowance for noncovered loan losses balance	$	37,172	$	27,778	$	5,124	$	334	$	14,753	$	6,269	$	6,520	$	5,899	$	103,849
Legacy loans:
Individually evaluated for impairment	$	6,079	$	32,112	$	8,929	$	—	$	32,378	$	5,522	$	2,060	$	18,076	$	105,156
Collectively evaluated for impairment	2,867,093		1,952,461		276,786		74,112		1,225,372		715,315		138,558		409,206		7,658,903
Total ending legacy loan balance	$	2,873,172	$	1,984,573	$	285,715	$	74,112	$	1,257,750	$	720,837	$	140,618	$	427,282	$	7,764,059



	As of December 31, 2011
	C&I		CRE		Construction		Leases		Installment		Home Equity Lines		Credit Cards		Residential Mortgages		Total
Ending allowance for noncovered loan losses balance attributable to loans:
Individually evaluated for impairment	$	2,497	$	1,599	$	99	$	—	$	1,382	$	31	$	108	$	1,364	$	7,080
Collectively evaluated for impairment	29,866		30,258		5,074		341		16,599		6,735		7,261		4,485		100,619
Total ending allowance for noncovered loan losses balance	$	32,363	$	31,857	$	5,173	$	341	$	17,981	$	6,766	$	7,369	$	5,849	$	107,699
Legacy loans:
Individually evaluated for impairment	$	8,269	$	36,087	$	9,320	$	—	$	33,571	$	4,763	$	2,202	$	17,398	$	111,610
Collectively evaluated for impairment	2,740,433		1,956,106		268,015		73,530		1,227,574		719,928		144,154		394,426		7,524,166
Total ending legacy loan balance	$	2,748,702	$	1,992,193	$	277,335	$	73,530	$	1,261,145	$	724,691	$	146,356	$	411,824	$	7,635,776



	As of March 31, 2011
	C&I		CRE		Construction		Leases		Installment		Home Equity Lines		Credit Cards		Residential Mortgages		Total
Ending allowance for noncovered loan losses balance attributable to loans:
Individually evaluated for impairment	$	156	$	3,932	$	1,622	$	—	$	336	$	8	$	162	$	896	$	7,112
Collectively evaluated for impairment	31,493		29,196		6,017		480		20,373		6,875		8,550		4,594		107,578
Total ending allowance for noncovered loan losses balance	$	31,649	$	33,128	$	7,639	$	480	$	20,709	$	6,883	$	8,712	$	5,490	$	114,690
Legacy loans:
Individually evaluated for impairment	$	4,629	$	53,551	$	12,555	$	—	$	8,333	$	1,307	$	2,836	$	13,031	$	96,242
Collectively evaluated for impairment	2,130,654		1,947,872		246,463		60,487		1,270,834		713,592		139,028		384,801		6,893,731
Total ending legacy loan balance	$	2,135,283	$	2,001,423	$	259,018	$	60,487	$	1,279,167	$	714,899	$	141,864	$	397,832	$	6,989,973

Schedule of Credit Losses for Financing Receivables, Current

The activity within the allowance for covered loan losses for the quarters ended March 31, 2012 and 2011 is shown in the following table:



	Quarter ended March 31,
	2012			2011
Balance at beginning of the period	$	36,417		$	13,733
Provision for loan losses before benefit attributable to FDIC loss share agreements	10,831			20,510
Benefit attributable to FDIC loss share agreements	(4,899		)	(15,179		)
Net provision for covered loan losses	5,932			5,331
Increase in indemnification asset	4,899			15,179
Loans charged-off	(6,178		)	(5,838		)
Balance at end of the period	$	41,070		$	28,405

Impaired Financing Receivables



	As of March 31, 2012
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment
Impaired loans with no related allowance
Commercial
C&I	$	3,272	$	9,937	$	—	$	4,357
CRE	25,734		36,073		—		26,449
Construction	7,764		12,785		—		7,945
Consumer
Installment	—		—		—		—
Home equity line	—		—		—		—
Credit card	223		223		—		251
Residential mortgages	4,409		4,409		—		4,925
Subtotal	$	41,402	$	63,427	$	—	$	43,927
Impaired loans with a related allowance
Commercial
C&I	2,807		3,206		972		2,919
CRE	6,378		6,568		2,478		6,120
Construction	1,165		1,165		224		1,168
Consumer
Installment	32,378		32,378		1,901		32,504
Home equity line	5,522		5,522		66		5,556
Credit card	1,837		1,837		92		1,885
Residential mortgages	13,667		13,667		1,504		13,692
Subtotal	63,754		64,343		7,237		63,844
Total impaired loans	$	105,156	$	127,770	$	7,237	$	107,771

(a) These tables exclude loans fully charged off.

(b) The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.



	As of December 31, 2011
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment
Impaired loans with no related allowance
Commercial
C&I	$	6,999	$	9,121	$	—	$	8,442
CRE	29,566		46,744		—		37,720
Construction	7,522		13,675		—		9,908
Consumer
Installment	—		—		—		—
Home equity line	—		—		—		—
Credit card	—		—		—		—
Residential mortgages	4,244		4,262		—		4,450
Subtotal	48,331		73,802		—		60,520
Impaired loans with a related allowance
Commercial
C&I	1,270		1,769		2,497		752
CRE	6,521		6,789		1,599		3,247
Construction	1,798		2,864		99		1,929
Consumer
Installment	33,571		33,621		1,382		33,742
Home equity line	4,763		4,763		31		4,996
Credit card	2,202		2,202		108		2,497
Residential mortgages	13,154		13,160		1,364		13,155
Subtotal	63,279		65,168		7,080		60,318
Total impaired loans	$	111,610	$	138,970	$	7,080	$	120,838

(a) These tables exclude loans fully charged off.

(b) The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.



	As of March 31, 2011
	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment
Impaired loans with no related allowance
Commercial
C&I	$	3,372	$	5,498	$	—	$	3,801
CRE	31,175		38,066		—		32,332
Construction	5,510		8,538		—		5,645
Consumer
Installment	—		—		—		—
Home equity line	—		—		—		—
Credit card	—		—		—		—
Residential mortgages	2,825		4,095		—		2,880
Subtotal	$	42,882	$	56,197	$	—	$	44,658
Impaired loans with a related allowance
Commercial
C&I	1,257		1,843		156		1,484
CRE	22,376		30,084		3,932		24,151
Construction	7,045		10,704		1,622		7,262
Consumer
Installment	8,333		8,342		336		8,016
Home equity line	1,307		1,307		8		1,334
Credit card	2,836		2,836		162		2,888
Residential mortgages	10,206		10,235		896		10,212
Subtotal	53,360		65,351		7,112		55,347
Total impaired loans	$	96,242	$	121,548	$	7,112	$	100,005

(a) These tables exclude loans fully charged off.

(b) The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.

Troubled Debt Restructurings on Financing Receivables



			As of March 31, 2012
			Number of Loans	Recorded Investment		Unpaid Principal Balance
Noncovered loans
	Commercial
		C&I	15	$	3,388	$	6,031
		CRE	30	9,136		12,745
		Construction	27	4,593		5,250
		Subtotal	72	17,117		24,026
	Consumer
		Installment	1,506	32,378		32,378
		Home equity lines	184	5,522		5,522
		Credit card	454	2,060		2,060
		Residential mortgages	184	18,076		18,076
		Subtotal	2,328	58,036		58,036
Covered loans
	Commercial
		C&I	12	7,662		14,877
		CRE	23	54,824		60,075
		Construction	9	13,687		33,791
		Subtotal	44	76,173		108,743
		Total	2,444	$	151,326	$	190,805

(a) The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.



			As of December 31, 2011
			Number of Loans	Recorded Investment		Unpaid Principal Balance
Noncovered loans
	Commercial
		C&I	14	$	2,512	$	4,336
		CRE	28	9,167		12,659
		Construction	22	3,323		3,985
		Subtotal	64	15,002		20,980
	Consumer
		Installment	1,547	33,571		33,621
		Home equity lines	174	4,763		4,763
		Credit card	496	2,202		2,202
		Residential mortgages	177	17,398		17,422
		Subtotal	2,394	57,934		58,008
Covered loans
	Commercial
		C&I	15	7,578		10,812
		CRE	21	57,786		62,159
		Construction	8	12,056		32,035
		Subtotal	44	77,420		105,006
		Total	2,502	$	150,356	$	183,994

(a) The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.



	As of March 31, 2012
	Accruing TDRs							Nonaccruing TDRs							Total		Total
	Current		Delinquent			Total		Current		Delinquent			Total		TDRS		Allowance
Noncovered loans
Commercial
C&I	$	1,791	$	—		$	1,791	$	—	$	1,597		$	1,597	$	3,388	$	822
CRE	3,672		510			4,182		3,152		1,802			4,954		9,136		224
Construction	4,077		—			4,077		137		379			516		4,593		224
Total noncovered commercial	9,540		510			10,050		3,289		3,778			7,067		17,117		1,270
Consumer
Installment	31,167		1,134			32,301		—		77			77		32,378		1,901
Home equity lines	4,828		387			5,215		75		232			307		5,522		66
Credit card	1,997		60			2,057		—		3			3		2,060		92
Residential mortgages	15,099		—			15,099		2,918		59			2,977		18,076		1,504
Total noncovered consumer	53,091		1,581			54,672		2,993		371			3,364		58,036		3,563
Covered loans
Commercial
C&I	855		—			855		1,550		5,257			6,807		7,662		1,384
CRE	14,672		—			14,672		21,747		18,405			40,152		54,824		7,720
Construction	—		—			—		3,835		9,852			13,687		13,687		1,245
Total covered commercial	15,527		—		—	15,527		27,132		33,514		—	60,646		76,173		10,349
Total TDRs	$	78,158	$	2,091		$	80,249	$	33,414	$	37,663		$	71,077	$	151,326	$	15,182



	As of December 31, 2011
	Accruing TDRs							Nonaccruing TDRs							Total		Total
	Current		Delinquent			Total		Current		Delinquent			Total		TDRS		Allowance
Noncovered loans
Commercial
C&I	$	91	$	—		$	91	$	—	$	2,421		$	2,421	$	2,512	$	247
CRE	3,305		513			3,818		3,590		1,759			5,349		9,167		236
Construction	2,782		—			2,782		304		237			541		3,323		99
Total noncovered commercial	6,178		513			6,691		3,894		4,417			8,311		15,002		582
Consumer
Installment	31,635		1,802			33,437		—		134			134		33,571		1,382
Home equity lines	4,226		222			4,448		76		239			315		4,763		31
Credit card	2,073		110			2,183		—		19			19		2,202		108
Residential mortgages	13,694		707			14,401		1,635		1,362			2,997		17,398		1,364
Total noncovered consumer	51,628		2,841			54,469		1,711		1,754			3,465		57,934		2,885
Covered loans
Commercial
C&I	565		—			565		1,022		5,991			7,013		7,578		1,384
CRE	13,562		—			13,562		21,521		22,703			44,224		57,786		6,567
Construction	—		—			—		5,838		6,218			12,056		12,056		696
Total covered commercial	14,127		—		—	14,127		28,381		34,912		—	63,293		77,420		8,647
Total TDRs	$	71,933	$	3,354		$	75,287	$	33,986	$	41,083		$	75,069	$	150,356	$	12,114

Schedule of Debtor Troubled Debt Restructuring, Current Period



	As of March 31, 2012
	Number of Loans	Recorded Investment
Noncovered loans
Commercial
C&I	1	$	1,169
CRE	1	119
Construction	—	—
Total noncovered commercial	2	1,288
Consumer
Installment	122	2,798
Home equity lines	—	—
Credit card	43	314
Residential mortgages	—	—
Total noncovered consumer	165	3,112
Covered loans
Commercial
C&I	—	—
CRE	1	301
Construction	—	—
Total covered commercial	1	301
Total	168	$	4,701

- Definition

Tabular disclosure of troubled debt restructurings in the current period: (1) for each restructuring, the principal changes in terms, the major features of settlement, or both; (2) the aggregate gain (loss) on restructuring of payables; (3) the income tax effect on the gain or loss recognized on the restructuring of payables; (4) the gain (loss) recognized on the restructuring of payables, after the impact of income tax expense or benefit; and (5) the aggregate gain (loss) on transfer of assets recognized during the period, after the impact of income tax expense or benefit.

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